Serializes an object and writes the resulting JSON string to the specified StringBuilder object.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The resulting JSON string exceeds the value of MaxJsonLength.
obj contains a circular reference. A circular reference occurs when a child object has a reference to a parent object, and the parent object has a reference to the child object.
The recursion limit defined by RecursionLimit was exceeded.
output is null.
Available since 3.5